Heating system.



E. H. GOLD. HEATING SYSTEM.

APPLIUATION FILED JAN. 2.7, 1905.

Patented Dec.21, 1909.

2 SHEETS-SHEET 2..

EGBERT H.- GOLD, 0F CHICAGO, ILLINOIS.

HEATING SYSTEM. f.

specincatio of Letters Patent. yPatented Dec. 21, 1909.

Application filed January 27, 1905. lSerial No. 242,91.

To all whom 'it may concern:

Be it known that I, EGBERT H. GOLD, a citizen of the United States, residing at Chicavo, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Heating Systems, of which the following is a specification.

My invention relates to improvements in apparatus for heating, and especially to improvements in car heating apparatus.

` ture whereby such temperature or pressure in said system may be varied as required.

These and various other objects are at'- tained by my invention. which is more fully set forth inthe herein-appended claims and is shown in a convenient embodiment there' of in the hereto-attached drawings, inA which- Figure 1 shows in perspective and diagrammatically a heating system, especially adapted for car hea-ting, and comprising lny present invention. Fig. lil is an enlarged detail. Fig. 2 is an enlarged sectional detail of the control apparatus and the drip or blow-oft' trap; and Fig. 3 is another sectional detail of the automatic control device. Like characters of reference indicate the same` parts in the several, figures of the drawings.

Referring to the accompanying drawings, l indicates the supply pipe, such as the. train-pipe in a car heating system; 2 is the feed-pipe leading to the radiating system in the car; 3 is the casing of the control apparatus; el, andare circulating pipes; 7 is the return/pipe; 8 is the blowofl' ordrip; and 9 isthe casing of the automatic trap.\ '1Q the car floor.

The casing 3 is divided into an inlet Chambord-X and a ldiaphragm chamberfB. '.lhe'feed-pipe 2 communicates with the inlet chai'nber A. through a nipple C,whicl nipplel is mounted in an inlet port connecting the chamber A with ythe feedepipe 2 and pro jects upwardly'to form a valve seat D. The valve-seat D is adapted to receive.l the valve E. l l

'The inlet chamber 'A leads through an upwardly inclined passa e-way F to a shuto valve G of any suitab e type. As shown, the shut-ott valve G is provided with a hand wheel H, which connects with the vvalve through its stem I. 1 Y

j The shutoff valve H, which is closed when the heating system is out of service,

controls communication between the inlet chamber A and the circulating system through the pipe 4. The dpipe Il conveys steam, or other heating flui to lhe pi e 5, whence the heating medium flows in oth directions back into the pipe 6, and thence, through the outlet pipe 7, to the diaphragm chamber B of the casing 3.

Communication between the diaphragm chamber B and the inlet chamber A ofA the casing 3 is conveniently closed by a perforests upon the upper face of the nipple and the other end of which is seated upon the button O. It is thus seen that the diaphragm l), the valve stem M and' the valve E are normally supported by 'the spring Q.

Screw-threaded through the casing 3 is` an adjusting stem R, the lower end of which an automatic trap, which may be conveniently,- but notnecessarily, connected with the 'pipe 7 adjacent tothe casing 3. As shown, the pipe 7 is dividedv and its abutting ends are. connected with a union U. This union is provided with a port which leads into thev drip or blow-oil' pipe 8, Which, in

turn, communicates with thc diaphragm cas\ ing 9, from which ports lO lead to the atnlosphere, or to any other suitable exhaust.

The blow-off port in the union U is controlled by a familiar form of apparatus, comprising a valve V adapted to engage the seat W so as to close said port, and connecting by the stem X with the expansible diaphragm Y which is mounted in the casing 9.

The operation of this apparatus is as follows: Vhen the vheating medium, such as steam, is turned on and the valve G is open, the diaphragm P, being cold, will be contracted andthe spring Q will hold the valve E in open position. Steam from the trainpipe 1 will iow through the feed-pipe 2 into the inlet chamber A, thence, through the inclined passage F and the valve G, into the pipe 4, around through the circulating system and back through the pipe 7,- forcing the cold air and any accumulated water of condensation out through the pipe 8 which thus serves as a blow-oli'. When live steam, following the cold air and water, Hows through the pipe 8 and surrounds the diaphragm Y in the casing 9, the valve V will close the blow-off port, and the circulating system will become -a closed system. j

If the diaphragml P be setto operaterthe same as the diaphragm Y, it will expand at substantially the same time that the diaphragm Y expands and, compressing the spring Q, will close .the valve and shut oii' thefiniow of steam. This condition will continue until the cooling of thel diaphragm Y causes it to contract and to open the valve V. If, however, notwithstanding the contraction kof the diaphragm Y, which is pref erably in an exposed position, the temperature within the more protected pipes of the circulating system remains at the desired point, the valve E will remain closed and,

1n the absence of pressure at the inlet end of the circulating system, there will be no escape of the heating medium through the blow-off pipe 9, notwithstanding the fact that the valve Vis open. Such opening of the valve V will merely permit of the escape of any water of condensation which may accumulate. As soon, however, as the diaphragm P begins to contract, the valve E will open and live steam at high pressure will flow into the pipes and, consequently, steam or heated vapor will fill the blow-off pipe 8 and surroundthe diaphragm Y in the casing 9 and, as the temperature rises, the diaphragm Y expanding will again close the blow-ofi;- port, and steam will continue to vflow into the system until the diaphragmv P in the casing 3 is again expanded suiiciently to close the inlet valve E. It will thus be seen that, if, for any reason, the diaphragm-P fails to operate perfectly or promptly in closing the valve E, nevertheless there can be no waste of steam to the lthe parts beinlg atmosphere, because the system will be closed and the only result will be to fill the circulating pipes with the heating medium at a higher pressure. It should be understood, however, that the foregoing operation relates, primarily, to the apparatus when setto operateat the atmospheric tempera ture` of steam. \`If, however, it be desired to maintain a higher temperature within the circulating pipes,.the*adjusting screw R ,will be set at a higher adjustment, sothat, the diaphragm P being free to expand for a certain extent, without-op osition, in the direction of the button do, yit will require a greater expansion of thediaphragm P, and' consequently a higher temperature within the diaphragm chamber B, before the diaphragm Pwill abut against the unyielding button S and begin to compress the`spring Q, and close the valve E. Under thesecircumstances, the drip, or trap, diaphragm Y will close whenever surrounded by steam at atmospheric temperature, thereby providing a closed system, which permits the pressure and temperature of the steam within the circulating system to rise to that degree whichis required to suiiciently expand the diaphragm P under its new adjustment, so as to close the inlet valve E. Now, applying the same principle a step farther, it will -be seen that yby still further adjusting the screw R, so as to furnish no effective abutment for the expansive diaphragm P, the diaphragm P can be put out of operation; that is to say,

phragm P wil engage no4 rigid abutment before it reaches its limit of expansion, it follows that under such conditions there will be no closure of the valve E and the circu- A lating system will be in free communication with the supply, and thus will be converted into a high pressure heating system, closed, except as to the drip or blow-off port, which will be more or less open through the operation of the diaphragm Y. ever, as there may be danger of damage if the diaphragm l is exposed to an indefinitely high pressure and is left, under such circumstances, to expand indefinitely, l. interpose a valve Il between the union U and the casing 3, so that when it is desired to use a direct pressure system, the closing of the valve 1l will cut out the automatic controlling device, while with the valve 1l open,

the automatic controlling device may be adjusted to operate at different pressures, as desired. It is thus seen that with my present arrangement I provide a convertible system, which may be adjusted so as to operate, atwill, either as a low pressure system ar 125 ranged to be substantially filled at all times with steam at atmospheric pressure, or a high pressure system arranged to bevilled at all times with steam at train-pipe pressure, or a system adaptable to adjustment to so adjusted'that the dia- 100 Inasmuch, how- 110 any pressure or two extremes. v't'ures of `my invention.

temperature between these So much for the broad fea- It will'be noted that when the valve E is open, the expansion of the spring Q, as well as the pressure of the in-rushing steam, will press the collar L on the valve stem M tightly against the expansible washer N,

thereby making a sufliciently tight joint forl preventing the flow of steam through the nipple J into the diaphragm chamber This' device, however, is not a part of my -present invention and is, therefore, not

into the train-pipe whenever a car fitted with this heating system is disconnected from the engine.

Although Iv have shown and'described my invention as applied to a car, and as peculiarly adapted for heating a car, or a train of cars, and although 1 specifically claim my invention in this combination, it' should be understood that I am not necessarily limited thereto. So, also various changes in detail will occur to the skilled mechanic, as a matter of convenience or adaptation, without departing from the spirit of my invention, and all such changes are contemplated hereby. l i

I do not here broadly claim the combination with automatically controlled inlet and outlet valves, of means for converting a heating system into a high pressure system or a low pressure system at will, that subject matter being involved in my co-pending application No. 245,311.

I claim:

1. The combination with a radiating systeni having an outlet, of means for supplying a heating medium to said system, a thermostat adapted to be brought into free communication with said system and arranged to operate to shut off said supply, and means, independent of said thermostat,

for closing said outlet.

r 2. The combination with a radiating system provided with an outlet, of a thermostat adapted to be continuously affected by the thermostatic condition of the heating medium within said system and arranged to control the inflow from said supply, and means, independent of said thermostat, for tutoinatically opening and closing said out- 3. The combination with a radiating sys-i tem provided with an outlet, of a thermostat actuated and adapted to be continuously acted upon by the condition of the heating medium in said system, and arranged tol control the supply of the heating medium to said system, and tliermostatically operated means, independent of said first-named thermostat, arranged to automaticallyopen' and close said outlet.

4. The combination with a radiating sysn tem provided with an outlet, of a thermostat actuated by and adapted to be continuously subjected to the thermostatic conj ditions in said system, and arranged to control the supply of the heating medium thereto, and means, independent of said thermostat, for automatically opening and closing said outlet, said means being actuated in part by thermostatic conditions externally ot' said system. y

5. The combination with a radiating system provided with an outlet, of an eXpansion device arranged to be actuated by and adapted to be continuously subjected 'to thermostatic conditions in said system. to control the inflow of the heating medium thereto, and an automatic trap, independent of said expansion device, arranged tocontrol said outlet.

6. The combination with a normally closed radiating system, provided with an automatically controlled drip outlet,of means,

said drip outlet, adapted to be actuated by and to be continuously subjected to thermostatic conditions in said system, so as to con, trol the inflow of a heating medium thereto.

7 The combination with a heating system of thermostatically operated means, in communication with said system, for controlling the supply of a heating medium to said system, and means for closing communication, at will between said system and the thermostatic element of said thermostatically operated means.

8. The combination with a radiating system provided with an outlet, of means for opening and closing said outlet as required, means, independent of said outlet controlling means, adapted to be ,actuated by and to be continuously exposed to thermostatic conl ditions within said system so as to control the iniow of a heating medium thereto, and

means for adjusting said controlling device ioo independent of the device for lcontrolling .95

mentnfor .said diaphra'tm, and means for adjustirfg'y vthe position `o said abutment so asy to vary the operation of said controlling means.

' 10. The combination with a'radiating -system, of a casing provided with an inlet chamber and anl expansion chamber, means adapted to be operated by thermostatic conditions withinsaid expansion chamber for controlling the inflow of a heating medium into said inlet chamber, va. valve mounted in said casing and arranged to control the flow of the heating medium from said inlet chamber 4to the radiating system, said inlet chamber being extended to form an u wardlylinclined passageleading to said va ve.

11. The combination with a heating system having an automatically. controlled outlet, of thermostatic means in communication with s aid system, for controlling the How of a heating medium thereto, and means whereby the thermostatic element of said inflow controlling means, may be cut into or out of communication with said system at will.

12. The combination with a system of circulating pipes provided with an outlet, of means for automatically controlling said outlet, a thermostat separate from said out.- let closing means and vlocated so as to be operatively influenced by steam flowing from the effective radiating portion of sald sys-v tem, an inlet valve in operative relation to y said thermostat and arranged to control the inflow to said system, and a non-automatic valve arranged to control the How of steam to a point. Where it will operativelyy inliuence said thermostat.

13. In a heating system, the combination with a radiating system provided with a blow-off, of means for opening and closing said blow-off, means for supplying a heating medium to said system at high pressure, means adapted to be actuated by thermostatic condltions within said system, for automaticallyv controllinvr the inflow to said system from said supply so as to maintain a relatively low 'pressure in said system, and means for cuttin'g the thermostatic member of said automatic controlling device out of communication with said system so as to convert said system, at will, into a high pressure system.

14. The combination with a radiating system provided with a blow-olf, of means for opening and closing said blow-off, means for supplying a heating medium to said system at high pressure, means adapted to be operated 'by thermostatic conditions within said system for controlling the infiow to said system from said supply so as to maintain the heating medium n1 said system at arelatively low pressure, means for adjusting said automatic device so as to maintain diierent l 6-5 pressures within said` system, and means for cutting' said automatic device out of communication with said system so as to leave said system in open communication with said 15. The combination with af system of circulating pipes provided with an outlet, of means adapted to be automatically operated by the condition of a `fluid medium -con- `tainedwin-said'system to control the flow of ,an inlet and with but a single outlet, a thermostatic device adapted to close said outlet, and a thermostat independent of said first operated by the condition of the heating medium in said systemv to control the inflow of a heating medlum through said inlet.

18. The combination with a system of circulatinof pipes provided with an outlet, of means for automatically opening and lclosing said outlet in response to thermostatic conditions, means, adapted to be operated by thermostatic conditions'wthin said system, to control the inflow to said system of a heating medium, and a valve so disposed in 'said system as to shut olf the heating medium from operative relation to said inlet controlling device, without interfering with the continued operative relation between said heating medium and said outlet controlling device..

19. The combination with a radiating system provided with an automatically operated steam trap, of means independent of' the steam trap for controlling the inflow of a heating medium to said system, said means comprising an expansible thermostat exposed to the thermostatic condition of the heating medium within said system, an inlet valve arranged to be operated by the eX pansion of. said'thermostat, and means for adjusting the operative relation between said :thermostat and said inlet valve so as to vary the extent to which said valve will be closed by the expansion of said thermostat ata given temperature.

20. The combination with a radiating system having an. outlet, of' means for supplying a heating medium to said system, a thermostat arranged to be, at will, continuously and operatively affected by the flow of'heating` medium vtrom the effect-ive radiating portion of' said system and arranged to control the intiow from said supply', a. non-automatic valve arranged to be positively opened and named thermostatic device, adapted to be -tem provided with a. source of supply and an outlet, of a thermostat adapted to be continuously affected by the thermostatic condition of the heating medium Within said system and arranged to control the inflow-from said supply, means for varying or'nullifying the operative effect of the thermostat in controlling the'supply, and means independent of said thermostat for automatically opening t and closing said outlet.

22. The combination With a radiating system provided With an outlet, of a thermostat actuated and adapted to be continuously acted upon by the condition of the heating medium in said system and arranged to control the supply of the heating medium to said system, means for varying or nullify' ing the operative eiiect of the thermostat in controlling the supply, and thermostatically operated means independent of saidA rst ynamed thermostat arranged to automatically open and close said outlet.

23. The combination With a radiating sysf tem provided with an outlet, of a thermostat actuated by and adapted to'be continuously subjected to the thermostatic conditions in said system and arranged to control the supply of the heating medium thereto,

means for varying or nullifying the operative eHect of the thermostat in controlling the supply, and means independent. of said thermostat for automatically opening and closing said outlet, said means being actuated in part by thermostatic conditions eXf ternal of said system.

24. The combination With a radiating system provided with an outlet, of an expansion device arranged to be actuated by and adapted to be continuously subjected to thermostatic-conditions in said system to control the inflow of the heating medium thereto, means for varyin or nullifying the operative efect of the t ermostat in controlling the supply, and an automatic trap independent of said expansion device arranged to control the outlet.

25. The combination Wi closed radiating system 'provided With an automatically controlled drip outlet, of means independent of the device for controlling the drip outlet adapted to be actuated by and to be continuously subjected to thermostatic conditions in the system, so as to control the inflow of a heating medium thereto, and means for varying or nullifying the operative e'ect of the thermostat in controlling the supply.

EGBERT H. GOLD. Witnesses:

O. R. BARNETT,

M. E. SHIELDS.

th a normally f 

